Head for sealing receptacles.



J. D. LORD.

HEAD FOR SEALING REGEPTAGLES.

APPLICATION FILED 11111.22, 1914.

Patented Dec. 15, 1914.

2 SHEETS-SHEET 1.

J Inventor:

'fi y MAJ M J. D. LORD.

HEAD FOR SEALING REGEPTAGLBS.

APPLICATION FILED JAN 22. 1914.

Patented Dec. 15, 1914.

2 SHEETS-SHEET 2.

0 9 M Inventor:

. in 4 I 'I/ JOHN D. LORD,

Air onion.

OF NEW YORK,

HEAD FOR SEALING RECEPTACLES.

Specification of Letters Patent.

Patented Dec. 15, 1914:.

Application filed January 22, 1914. Serial No; 813,644.

To all whom it may concern Be it known that 1, JOHN D. LORD, a citizen of the United States, and resident of the city of New York, borough of Brooklyn, in the county of Kings and State of New York, have invented certain new and useful Improvements in Heads for Sealing Receptacles, of which the followingis a specification.

This invention relates to certain new and useful improvements in heads for sealing receptacles and particularly such receptacles which are closed by a flanged sheet metal cap, the bottom edge of which flange is to be forced under an exterior shoulder or projection at the mouth of the receptacle for the purpose of holding the cap firmly and securely on said receptacle such as a jar bottle or the like.

The object of my invention is to provide a new and improved device for sealing receptacles by curling the free edge of a flange of a cap, under a shoulder on the outside of the receptacle at the mouth, by producing a pressure of the bottle mouth on the cap, which device is simple in construction, strong, durable and e'tfective and reliable in operation.

In the accompanying drawings in which like letters of reference indicate like parts in all the figuresz Figure 1 is a vertical transverse sectional view of one embodiment of my new and improved sealing head showing thehead open and the receptacle or bottle provided with a cap, beneath it. Fig. 2 is a similar view showing the same parts in intermediate position. Fig. 3 is a similar view showing the parts when the cap is sealed on. Fig. 1 is a plan view showing the levers. Fig. 5 is a plan view of the curling dies.

The cylindrical head 1 isprovided in its closed top with a screw threaded hole 2 by means of which the head can be readily screwed in a suitable top support. A block 3 is provided with a threaded stem 1 which is screwed into a threaded aperture in the underside of the closed top of the head 1 so that this block 3 projects from the underside of the top of the head. The lower part of the head is hollow and the annular side walls 5 are provided with a bottom enlargement or flange 6 which is screw threaded and on the same a threaded ring 7 is screwed the annular side walls 5. The. ring 7 is provided at its lower end with an upwardly and inwardly inclined flange 10. Fitting quite snugly but so that it can slide up and down a ring 12 is placed loosely within the head and is provided with a top flange 13 and a bottom flange lat. A circular metal anvil block or disk 15 of a diameter corresponding to that of the cap to be secured upon the bottle or other receptacle is provided with a plurality of pairs ofupwardly projecting lugs 16 between each of which a lever 17 is pivoted, the inner ends of which are beneath the block 3-and the outer end of each of which is shaped and formed as a lug 18 which extends into the annular recess of the ring 12 and is beneath the upper flange 13. An annular curling die is formed of a plurality of loosely hung fingers 19 which, when their ends are in contact form a complete ring and which can move toward and from each other radially. Each finger 19 is provided at its upper end with an outwardly extending lug 2O resting on the bottom flange 11 of the ring 12 and beneath said lug 20 as at 21, the finger is recessed at its outer end so as to pass through the space between the inner edge of the flange 14: and the circumference of the anvil block 15. Each finger 19 is provided at its inner edge and lower end with an inwardly extending curved flange 22 and at its outer edge and the lower end of each curling finger is provided with a downwardly projecting flange 23.

The receptacle 24 such as for example, a milk bottle, jelly bottle or jelly cup, is provided at its upper end with an outward flange or enlargement 27 upon which the underside of the closed cap 25 rests, said cap having a downwardly extending metal flange 26, the lower edge of which flange, when the cap rests upon the top edge of the bottle extends a short distance below the shoulder'formed by the under side of the flange or enlargement 27 on the bottle 24. The cap 25 is placed upon the top of the bottle and the bottle is placed on an up wardly movable support in such a manner that the head with the cap thereon is directly below the inclined flange 10 of the the anvil block is in lowered position and the levers 17'are in the position shown in Fig. 1. The bottle is then forced upward by moving upward its support until the top of the cap 25 is in contact with the-underside of the anvil plate 15 and the levers 17 are brought into the positions shown in Fig.

2 whereby the inner ends of the levers'l7 are brought in contact with the block 8. Thereby the ring 12 is raised and carries up the curling die fingers, as their upper lugs 20 rest on the bottomflange 14 of the ring 12. As said curling die fingers move upward their inclined cam shoulders 30 encounter the bottom inner corner of the abutment ring 9 and thereby these curling die fingers are brought into the position shown in Fig. 2, and the flanges 22 of the curling dies are now beneath the bottom edge of the metal flange 26 of the cap 25 as shown in Fig. 2. By continuing the upward pressure on the bottle the inner ends of the levers 17 are forced downward and their outer lugs move the ring 12 upward whereby the curling die fingers are moved upward, their outer straight edge parts sliding up on the inner cylindrical surface of the ring 9. The rounded flanges 22- of the curling die fingers engage the free lower edge part of the flange26 of the cap and curl or bend the same against the shoulder formed by the bottom edge of the enlargement 27 of the bottle or receptacle 23 and press the lower edge part of the flange firmly in place, against said shoulders. The cap 25 is provided with an internal yielding cushion or lining 32 generally made of a lower layer of wax paper and above that a layer of wood pulp or analogous material which lining yields more or less until it is pressed firmly on the top edge of the bottle and is held in place with the cap as the bottom edge parts of the flanges 26 are pressed firmly against the shoulder formed by the bottom edge of the enlargement 27 of the bottle 24, all this depending upon the amount of upward pressure on the bottle. The bottle is then moved downward and the parts drop automatically into the positions shown in Fig. lwhereupon the same operation can take place on another bottle. When the parts descend the lower edges of the flanges 23 of the curling fingers slide downward and outward on the upper inclined surface of the flange 10 and thereby the curling die is automatically opened to permit of removing the sealed receptacle.

Having described my invention what I claim as new and desire to secure by Letters Patent is 1. The combination with a hollow head, of an anvil plate movable up and down in the same,.levers. pivoted on the anvil plate, a

ring movable up and down in said head and engaged with the levers on the anvil plate, curling fingers suspended from said ring having an interior flangeat its open bottom,

of an anvil plate movable up and down in the same, levers pivoted on the anvil plate, a ring movable up and down in said headand engaged with the levers on the anvil plate, curling fingers suspended from said ring having bottom flanges adaptedto rest on the bottom flange of the head, when the fingers are in lowered position and an abutment for said curling fingers on thehollow head, substantially asset forth. 1

3. The combination with a hollow head, of an anvil plate movable up and down in the same, levers pivoted on the anvil plate, a ring movable up and down in said head and engaged with the levers on the anvil plate,

curling fingers suspended from saidring, and an abutment for said curling fingers on the hollow head and means for spreading the curling: fingers during theirsdownward movements in the head, substantially as set forth.

4:. The combination with a hollow head, of an anvil plate movable up and down in the same, levers pivoted on the anvil plate, a ring movable up and down in said head and engaged with the levers on the anvil plate, curling fingers suspended from said ring, each having a cam part on its outer face for engagement with an abutment and an abutment for said curling fingers-on the hollow head, substantially as set forth. 7

5. The combination with a hollow head having an upwardly and. inwardly inclined and down in said head, levers on said anvil plate, a ring movable up'and down in said bottom flange, of'an anvil plate movable up an anvil plate movable up and down in said 1 head, levers on said head, a ring mounted to move up and down 1n sald head and having interior top and bottom flanges, the top. 'flange being above the outer ends of the levers on the anvil plate, curling fingers sus-- pended from the bottom flange of thering, each .having a curling fiange on the inner face and a cam on the outer face, an abut- New York and State of New York, this 25th ment on said head and means for automatiday of October, A. D. 1913.

cally moving the lower ends of the curling JOHN D. LORD. fingers outward, as said fingers move down: WVitnesses: 5 Ward, substantially as set forth. ARTHUR L. BARRUS,

Signed at New York city, in the county of JOHN ROTH.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents;

Washington, D. G." 

